Much research has also been conducted on everolimus and other mTOR inhibitors as targeted therapy for use in a number of cancers. It is marketed by Novartis under the tradenames Zortress (USA) and Certican (Europe and other countries) in transplantation medicine, and Afinitor in oncology. Everolimus also available with Biocon with the brand name of Evertor.
Female fox and gray squirrels that are at least two years old have two litters per year, younger females have only one litter per year. Average litter size is two to four (southern flying squirrels may have litters of up to seven young), with young weaned around eight weeks of age.
Photo: Tony Campbell/Shutterstock. There are 44 species of flying squirrel, most of which are found in Southeast Asia. But two of those species, the northern flying squirrel and southern flying squirrel are found right here in the U.S. They are the only two native flying squirrel species and they are equally adorable.